Filter screen alarm device resistant to external interference

Abstract

The utility model discloses a filter screen alarm device resistant to external interference, which comprises travel switches and channel steel, the travel switches are connected and fixed on a travel switch mounting rack through bolts, the travel switches are electric appliance elements of the filter screen alarm device, two travel switches are respectively arranged on the left and the right, and a PPR pipe is arranged on the surface of the channel steel through a U-shaped pipe clamp. A PPR hot melting pipe cap is connected to the upper portion of the PPR pipe in a clamped mode, the PPR pipe is connected with a PPR hot melting pipe connector through a fuse machine, a guide rail is welded to the surface of the steel channel, a steel wire rope is inserted into the PPR pipe, and a pulling rotating block is connected to the lower portion of the steel wire rope. According to the rotary filter screen, all the elements are connected through welding, pin shafts and fasteners, installation is easy, all the elements of the rotary filter screen are conventional materials or parts, manufacturing cost is low, cost performance is high, the rotary filter screen is simple in principle and convenient and fast to operate, and meanwhile the applicability of the rotary filter screen in different fields is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter alarm, in particular to a filter alarm device resistant to external interference. Background Art

[0002] The rotary filter is a commonly used solid-liquid separation equipment for water treatment. It is mainly used to intercept and remove suspended solids and particulate impurities with smaller diameters in the water supply system. It is often used in water supply projects such as water plants that use surface water as a water source. It can also be used in drainage treatment projects to further remove dirt from the water source after the coarse screen.

[0003] At present, when the rotary filter runs for a long time, the mesh chain plate will be stressed and the material will extend. Once it extends to a certain distance, the roller will squeeze the outer guide rail, making the mesh plate unable to operate normally. If it is not handled in time, it will have a great impact on the equipment, reduce the quality of water treatment, and cause great trouble.

[0004] To this end, we propose a filter alarm device that is resistant to external interference to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when the rotating filter runs for a long time, the mesh plate chain plate will be stressed and the material will stretch. Once it stretches to a certain distance, the roller will squeeze the outer guide rail, so that the mesh plate cannot operate normally. If it is not handled in time, it will have a great impact on the equipment. A filter alarm device resistant to external interference is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A filter alarm device resistant to external interference comprises a travel switch and a channel steel, the travel switch is fixed to a travel switch mounting frame by bolts, a PPR pipe is installed on the surface of the channel steel by a U-shaped pipe clamp, a PPR hot-melt pipe cap is clamped on the top of the PPR pipe, the PPR pipe is connected to a PPR hot-melt pipe joint by a hot-melt machine, a guide rail is welded on the surface of the channel steel, a steel wire rope is inserted into the inside of the PPR pipe, and a pulling turn block is connected below the steel wire rope.

[0008] Preferably, the travel switch is an electrical component of the filter alarm device, with two on each side.

[0009] Preferably, the PPR hot melt pipe cap has one piece on each upper and lower side, the PPR hot melt pipe cap and the PPR pipe are connected to each other by hot melt machine, and the PPR hot melt pipe joint is connected to the PPR pipe by hot melt machine.

[0010] Preferably, a through hole is provided inside the PPR hot-melt pipe cap, and the diameter of the through hole is larger than the surface size of the steel wire rope.

[0011] Preferably, the U-shaped pipe clamp and the channel steel surface are provided with multiple groups of screw holes with a size of 11 mm, and each screw hole is equipped with a gasket and two nuts.

[0012] Preferably, the U-shaped pipe clamp is of an extended type, and the length of the U-shaped pipe clamp is 75 mm.

[0013] Preferably, the channel steel is made of 5 mm stainless steel by bending, and the channel steel is welded and installed to the outer rail of the guide rail.

[0014] Preferably, the guide rail is formed by welding profiles and is divided into multiple sections in the gravity direction. Each section is connected by bolts, and the guide rail is welded to the channel steel.

[0015] Preferably, the steel wire rope is made of stainless steel with a diameter of 3 mm. The steel wire rope is composed of steel wire, rope core and grease.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The components of the device are connected by welding, pins and fasteners, and the installation is simple. The components of the device are made of conventional materials or parts, with low manufacturing cost and high cost performance. The device has a simple principle and is easy to operate. At the same time, the device greatly improves the applicability of the rotary filter in different sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view schematic diagram of a filter alarm device resistant to external interference proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of tensioning state in AA direction;

[0020] Figure 3 for Figure 1 AA direction alarm status diagram;

[0021] Figure 4 for Figure 1 Schematic diagram of the front view of the travel switch and the travel switch mounting frame structure.

[0022] In the figure: 1. travel switch; 2. PPR hot-melt pipe cap; 3. U-shaped pipe clamp; 4. Channel steel; 5. PPR pipe; 6. PPR hot-melt pipe joint; 7. Guide rail; 8. Wire rope; 9. Pulling block; 10. Travel switch mounting bracket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 A filter alarm device resistant to external interference, the filter alarm device needs to be installed on the descending side of the rotary screen, two sets need to be installed for each rotary screen, and they are arranged symmetrically, including a travel switch 1 and a channel steel 4, the travel switch 1 is fixed on the travel switch mounting frame 10 by bolts, and a PPR pipe 5 is installed on the surface of the channel steel 4 through a U-shaped pipe clamp 3. The main purpose of the PPR pipe 5 is to protect the wire rope. In addition to the characteristics of general plastic pipes such as light weight, corrosion resistance, no scaling, and long service life, the PPR pipe 5 is also non-toxic and hygienic. , thermal insulation and energy saving, good heat resistance, long service life, easy installation, reliable connection, good welding performance, pipes and fittings can be connected by hot melt and electric fusion, easy installation, reliable joints, the strength of the connection part is greater than the strength of the pipe itself, the PPR pipe 5 is clamped with a PPR hot melt pipe cap 2 on the top, the PPR pipe 5 is connected to a PPR hot melt pipe joint 6 through a hot melt machine, the surface of the channel steel 4 is welded with a guide rail 7, a steel wire rope 8 is inserted inside the PPR pipe 5, and a pulling turn block 9 is connected to the bottom of the steel wire rope 8.

[0025] Further, see Figure 1 and Figure 2 It can be known that the travel switch 1 is the electrical component of the filter alarm device, with two pieces on the left and right, which are fixed on the travel switch mounting frame 10 with bolts. The movement and collision of the wire rope 8 are used to activate its contacts to disconnect the control circuit of the entire filter, thereby protecting the operation of the entire equipment and also sending out an alarm signal.

[0026] Further, see Figure 1 and Figure 4 It can be known that there is one piece on each side of the PPR hot melt pipe cap 2, and the PPR hot melt pipe cap 2 and the PPR pipe 5 are connected to each other by hot melting machine in order to prevent marine organisms or other foreign matter from entering the pipeline. The PPR hot melt pipe joint 6 is connected to the PPR pipe 5 by a hot melting machine. The PPR hot melt pipe joint 6 and the PPR pipe 5 are made of the same material, so they have the same performance advantages.

[0027] Further, see Figure 2 and Figure 3 It can be known that a through hole is opened inside the PPR hot-melt pipe cap 2, and the diameter of the through hole is larger than the surface size of the steel wire rope 8. Since the steel wire rope 8 needs to pass through the PPR hot-melt pipe cap 2, drilling processing is required, and the diameter of the through hole is not less than 6MM.

[0028] Further, see Figure 1 and Figure 4It can be seen that multiple sets of screw holes with a size of 11 mm are provided on the surface of the U-shaped pipe clamp 3 and the channel steel 4, and each screw hole is equipped with a gasket and two nuts to achieve a self-locking function, making the installation tighter and less likely to loosen.

[0029] Further, see Figure 1 and Figure 4 It can be known that the U-shaped pipe clamp 3 is an extended type, and the length of the U-shaped pipe clamp 3 is 75 mm. The channel steel 4 cooperates with the PPR hot-melt pipe cap 2 to fix the PPR pipe 5.

[0030] Further, see Figure 2 and Figure 3 It can be known that the channel steel 4 is made of 5 mm stainless steel by bending, which increases the strength of the channel steel 4, and the channel steel 4 is welded and installed with the outer rail of the guide rail 7, which can facilitate the installation of the channel steel 4.

[0031] Further, see Figure 2 and Figure 3 It can be known that the guide rail 7 is formed by welding profiles and is divided into multiple sections in the direction of gravity. Each section is connected by bolts. The guide rail 7 is welded to the channel steel 4. The guide rail 7 is made of stainless steel and can be formed by bending the plate and welding it. The guide rail 7 is welded to the channel steel 4 to form a fixed bracket for supporting the PPR pipe 5.

[0032] Further, see Figure 2 and Figure 3 It can be known that the wire rope 8 is made of stainless steel with a diameter of 3mm. The wire rope 8 is composed of steel wire, rope core and grease, and is used to tighten the pulling turn block 9. The pulling turn block 9 is an important component in the alarm device. When the outer guide rail of the roller extrusion guide rail 7 reaches a certain stage, the arc plate of the pulling turn block 9 will rotate, driving the wire rope.

[0033] Working principle: When the utility model is in use, according to the attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4 When the rotary screen runs for a long time, the mesh plate chain plate is stressed to cause material extension. If it extends too much, it is easy to get stuck. At this time, the roller will squeeze the outer rail of the guide rail 7. The outer rail at the extension of the chain pulls the arc plate of the rotating block 9 to be squeezed and rotated by the roller, driving the wire rope 8, and finally driving the tentacles of the travel switch 1, generating an electrical signal. The signal enters the control cabinet of the rotary filter, and there will be an indicator light on the door of the cabinet. At the same time, these signals will also be transmitted to the DCS remotely. After the alarm signal is issued, it needs to be adjusted manually;

[0034] The above is the entire working principle of the utility model.

[0035] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0036] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0037] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A filter alarm device resistant to external interference, comprising a travel switch (1) and a channel steel (4), characterized in that: The travel switch (1) is fixed on the travel switch mounting frame (10) by bolt connection, a PPR pipe (5) is installed on the surface of the channel steel (4) by means of a U-shaped pipe clamp (3), a PPR hot-melt pipe cap (2) is clamped on the top of the PPR pipe (5), the PPR pipe (5) is connected to a PPR hot-melt pipe joint (6) by means of a hot-melt machine, a guide rail (7) is welded on the surface of the channel steel (4), a steel wire rope (8) is inserted inside the PPR pipe (5), and a pulling rotating block (9) is connected below the steel wire rope (8).

2. A filter alarm device resistant to external interference according to claim 1, characterized in that: The travel switch (1) is an electrical component of the filter alarm device, and there are two on each side.

3. The filter alarm device resistant to external interference according to claim 1 is characterized in that: The PPR hot-melt pipe cap (2) has one piece on each side, one piece on the top and one piece on the bottom. The PPR hot-melt pipe cap (2) and the PPR pipe (5) are connected to each other by hot-melting using a hot-melt machine. The PPR hot-melt pipe joint (6) is connected to the PPR pipe (5) by a hot-melt machine.

4. The filter alarm device resistant to external interference according to claim 1 is characterized in that: The PPR hot-melt pipe cap (2) is provided with a through hole inside, and the diameter of the through hole is larger than the surface size of the steel wire rope (8).

5. The filter alarm device resistant to external interference according to claim 1 is characterized in that: The surfaces of the U-shaped pipe clamp (3) and the channel steel (4) are provided with a plurality of sets of screw holes with a size of 11 mm, and each screw hole is equipped with a gasket and two nuts.

6. The filter alarm device resistant to external interference according to claim 1, characterized in that: The U-shaped pipe clamp (3) is of an extended type, and the length of the U-shaped pipe clamp (3) is 75 mm.

7. The filter alarm device resistant to external interference according to claim 1, characterized in that: The channel steel (4) is made of 5 mm stainless steel by bending, and the channel steel (4) is welded and installed to the outer rail of the guide rail (7).

8. The filter alarm device resistant to external interference according to claim 1, characterized in that: The guide rail (7) is formed by welding profiles and is divided into multiple sections in the gravity direction. Each section is connected by bolts, and the guide rail (7) is welded to the channel steel (4).

9. The filter alarm device resistant to external interference according to claim 1, characterized in that: The steel wire rope (8) is made of stainless steel and has a diameter of 3 mm. The steel wire rope (8) is composed of a steel wire, a rope core and lubricating grease.

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